Nonstop flight route between Fort Sill, Oklahoma, United States and Ambato, Ecuador:
Departure Airport:

Arrival Airport:

Distance from FSI to ATF:
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- About this route
- FSI Airport Information
- ATF Airport Information
- Facts about FSI
- Facts about ATF
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to ATF
- List of Nearest Airports to ATF
- Map of Furthest Airports from ATF
- List of Furthest Airports from ATF
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chachoan Airport (ATF), Ambato, Ecuador would travel a Great Circle distance of 2,791 miles (or 4,491 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Henry Post Army Airfield and Chachoan Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Chachoan Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATF / SEAM |
Airport Names: |
|
Location: | Ambato, Ecuador |
GPS Coordinates: | 1°12'42"S by 78°34'27"W |
Area Served: | Ambato, Ecuador |
Operator/Owner: | Public / Military |
Airport Type: | Public |
Elevation: | 8502 feet (2,591 meters) |
View all routes: | Routes from ATF |
More Information: | ATF Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
Facts about Chachoan Airport (ATF):
- The furthest airport from Chachoan Airport (ATF) is Pinang Kampai Airport (DUM), which is nearly antipodal to Chachoan Airport (meaning Chachoan Airport is almost on the exact opposite side of the Earth from Pinang Kampai Airport), and is located 12,409 miles (19,971 kilometers) away in Dumai, Sumatra, Indonesia.
- The closest airport to Chachoan Airport (ATF) is Cotopaxi International Airport (LTX), which is located 21 miles (34 kilometers) N of ATF.
- In addition to being known as "Chachoan Airport", another name for ATF is "Aeropuerto Chachoan".
- Because of Chachoan Airport's high elevation of 8,502 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ATF. Combined with a high temperature, this could make ATF a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.